CVE-2026-64023
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved:
gpio: aggregator: fix a potential use-after-free
On error we free aggr->lookups->dev_id before removing the entry from the lookup table. If a concurrent thread calls gpiod_find() before we remove the entry, it could iterate over the list and call gpiod_match_lookup_table() which unconditionally dereferences dev_id when calling strcmp(). Reverse the order of cleanup.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 86f162e73d2d81ef6d819c06a3b6c2fda77a79b8 < ea28b286649b70618e9dd3e895812417a7712a11 | affected |
| Linux | Linux | 86f162e73d2d81ef6d819c06a3b6c2fda77a79b8 < 7ac4183a41ba048af89eddd82fe8be64619d0871 | affected |
| Linux | Linux | 86f162e73d2d81ef6d819c06a3b6c2fda77a79b8 < 30c073cab97afb31901f94de9605177b6b84367e | affected |
| Linux | Linux | 6.16 | affected |
| Linux | Linux | 0 < 6.16 | unaffected |
| Linux | Linux | 6.18.34 <= 6.18.* | unaffected |
| Linux | Linux | 7.0.11 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/ea28b286649b70618e9dd3e895812417a7712a11
- https://git.kernel.org/stable/c/7ac4183a41ba048af89eddd82fe8be64619d0871
- https://git.kernel.org/stable/c/30c073cab97afb31901f94de9605177b6b84367e
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